Hiltonia, Georgia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 53.7 °F (low) to 76.7 °F (high). Annual precipitation averages 47.7 Inches. Hiltonia is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Mar. 11 - Mar. 20 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 35.9 °F | 59.5 °F | 4.01 in. |
| February | 38.5 °F | 63.0 °F | 3.8 in. |
| March | 44.4 °F | 70.0 °F | 3.91 in. |
| April | 51.7 °F | 77.4 °F | 3.14 in. |
| May | 60.6 °F | 84.3 °F | 3.17 in. |
| June | 68.5 °F | 89.6 °F | 5.46 in. |
| July | 71.7 °F | 92.1 °F | 5.08 in. |
| August | 71.1 °F | 90.5 °F | 5.47 in. |
| September | 65.9 °F | 86.1 °F | 3.92 in. |
| October | 54.4 °F | 78.2 °F | 2.98 in. |
| November | 43.4 °F | 68.6 °F | 2.86 in. |
| December | 38.2 °F | 61.5 °F | 3.87 in. |
| Annual | 53.7 °F | 76.7 °F | 47.67 in. |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 11 - Mar. 20 |
| Average Days With Frost | 30-40 Days |
| Plant Hardiness Zone | Zone 8b : 15°F to 20°F |
| Plant Hardiness Zone - 2012 | Zone 8b : 15°F to 20°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |